is (23) 
Di • • '. , N .ember 1920: entomol : . So. 
A > . ■ . . Jour. 2(1): 14 
":'.'..: . ■_ li .: • South Africa fro th 
America is discuss* 

Departmental activities: entomolog; . :'rica Dept. Agr. 
Jour. 2(2): 109-113. 
B> res that the introduction of Aphelinus mali from th :ed 
tes will become established. 
- 
i\ activities: entomology. So. Dept \gr. Jou- . 
(3): 204-206. 
Thesuccess of Aphelinus mali is discussed. 
. ities: entomology. So. * Dept. 
Jour. 2(A): 301-306. 
The establishment of the parasite Aphelir/.- n . 1 i of the 
apple aphid rec i t check, owing to the aphid almost dying out 
in l- .th its reappearance in March, h 
•• found in numbers. 
\) Logy, .So, 
I), pt. . : . Jo ir. 3(4): 306-31 . 
i i ■ iblishment of Aphelinus mali '' '. ed. 
It . sible that Its work Ls hi] I by th< 
. • i . 
I . 
La difu lei Aphelinus mali. _ _ : 
M( l: 121. 
A. mali Inl ed Into Uruj 
